The stomach pain after miscarriage is mainly due to the following reasons: 1. uterine contraction, after miscarriage surgery the uterus starts to contract to return to the pre-pregnancy state, in the middle of the process of uterine contraction, the patient will have abdominal pain, this abdominal pain is more similar to menstrual cramps. 2. stimulation of surgery and pelvic congestion, these two conditions will cause the patient to have more obvious pain, at the same time sometimes also 3. If you do not rest well after the operation, premature activity or infection, it will also cause stomach pain. Therefore, it is generally recommended to take a good rest after abortion. Avoid strenuous exercise within 1 week after the operation, and use appropriate medication to promote uterine contractions. If the pain is unbearable, physical therapy can be used to improve it.